>2pw1B (B:) observed residues (from ATOM records)
ritlkesgpplvkptqtltltcsfsgfslsdfgvgvgwirqppgkalewlaiiysdddkr
yspslntrltitkdtsknqvvlvmtrvspvdtatyfcahrrgpttlfgvpiargpvnamd
vwgqgitvtisststkgpsvfplaptaalgclvkdyfpepvtvswnsgaltsgvhtfpav
lqssglyslssvvtvpsssqtytcnvnhkpsntkvdkrvep